Automatic machine for making metal plugs for barrels



Oct. 21, 1930. s. c. NELsQu' 1,778,956

AUTOMATIC MAQHIXE FOR MAKING METAL PLUGS FOR BARRELS Filed Sept.- 2 0, 1926 7 Sheets-Sheet l 10 g .35 7 g 53 P34 6 -Ql E Oct. 21, 1930. a. c. NELSON 1,778,956

AU'I'OIVIA'I'IC MACHINE FORMAKING METAL PLUGS FOR BARREIJS Filed Sept. 20, 1926 '7 Sheets-Sheet 2 1& .36 v 29 r.--- 35 O I @0 ll?! Q13, I I 6Z Oct. 21, 1930. V G; c. NELSON 1,778,956

AUTOMATIC MACHINE FOR MAKING METAL PLUGS FOR BARRELS Filed Sept. 20, 1926 7 sheets sheet 3 Oct. '21 1930. v v G. c. NELSON I 1,778,956

AUTOMATIC MACHINE FOR MAKING METAL- PLUGS FOR BARRELS Filed Sept. 20, 1926 7 Sheets-Sheet 4 iiii LL a. c. NELSQN Qc't. 21, 1930.

AUTOMATIC MACHINE FOR MAKING METAL fLUGS FOR BARRELS Fileq sept. 20, 1926 7 Sheets-Sheet 5 7 Sheefs-Sheet 6 G. C. NELSON Oct. 21, 1930.

AUTOMATIC MACHINE FOR MAKING METAL PLUGS FOR BARRELS Filed Sept. -20, 1926 Oct. 21, 1930. G. c. NELSON, 1,778,956

AUTOMATIC MACHINE FOR MAKING METAL PLUGS FOR BARRELS Filed Sept. 20, .1926 7 Sheets-Sheet 7 Patented a. 21, 1930 eus'rAvE c. NELSON, on Mount ILLINQIS, .assrenon ro vivronnvn ronivnnv 'a f MACHINE com any, or MQLINE, rumors, vn CORPORATION or ILLI OIS AUTOMATIC MACHINE roaMA me METAL PLUGS r03 ARREL-s.

Application filed September 20, 1926. 'SeriaI No. 136,457.

. Theobject of'this invention is to provide an automatic machlne of comparatively simple constructionfor making metal plugs, for

barrels whereby an efficient plug of substantial construction can beproduced at a rela tively high rate of speed and at lower cost than has been possible heretofore. I

Another object of the invention is to pro:

vide an automatic machine which can be- 1 quickly and easily changed and adapted for performing the turning, necking, and threading operations in the manufacture of metal plugs for barrels, whereby these separate operations may be performed at a higher rate of speed, and the machine may bequickly changed to perform the several operations,

whereby the completed'plugs may be pro- 'ducedmore rapidly,and at a lower. cost than has been possible heretofore. i

provide a machine which is automatic in its operations and'which requires only a manual feed, so that the actual labor of an operator is practically nothinginorethan feeding the 1 blanks to the machine and removing them, I whichdoes not require skilled labor. 7 I have illustrated the machinein the accoinpanying drawings as equipped for necking or undercutting metal plugs for barrels,

and referring thereto: 1

j 1 Fig. 1 is a side elevation of the machine.

Fig. 2 is a front elevation of the machine.

Fig; 3 is a top plan viewof the machine. 7 Fig. 4: is a horizontal sectionalview on the line44ofFig.1. .1

Fig. 5 is an enlarged detail view,'partly-in section, of the index devices.

7 Figzfiis an enlarged detall devices for impartinga' vertical movement to the Work table Fig. 7 is a detail enlargedsectional view V I i V p I ismounted in the sleeve andfprojects intothe" slot to limit the slidingmovement of the sleeve on the line 77 of 2.

, Fig. 8 is an enlarged .v1evv,'partlyin seca tion, of the. cutter head and work table show-Y the machineshowing the means.

And a further object ofithe invention to view, partly-in section, of the cam and some of the gears and Fig. 11 is a horizontal sectional viewon I line 11-11 of Fig. 9.

Fig. 12 is a horizontal sectional view on the line12-12ofFig.9. ;1 Y

1 Fig. 13 is a detailsectional view on-thejline 1318 of Fig. 11. I

Fig.14; is a detail of the slide blocks with tool thereon. 1 p

" Fig. 15 is a perspective view vof-a part of means for operat ing the diehead.

perspective view. of one the necking cutting Fig. 16 is .a. detail View of the Referring to, t drawings 1 des gnate gen erallyztheframe of the-machine and} 1 is the main shaft which is supported in bears;

ings on the frame and carriesa pulley "3 to which power is communicated by. a belt 4 from any suitable source (Fig;v 2) Aggear 5 on the main shaft.2 drives a gear 6 ona'shaft' 7 which is supported in a bearing 7 in the frame and also c-arries a beveledpinion 8 which meshes with a beveled gear Q keyed to the spindle shaft 10 which is mounted in 'bearings 11 inthe frame and is enl'arged and bored at itslower end to-receive the diehea'd v12 (Figs. 8,'9). The'die head is splined-tO the shaft at 13 to rotate with the shaft and to slide vertically in the shaft. A plurality of 3 cutting tools are radially mounted-on the lower endofthe die head, eachof theseitoolsld; (Fig.14) beingmounted on a. block15ewhich.

slides-in-aslideway-16(Fig. 13) in thedie head. A springl? is arrangedina recess '18 in thedieheadabove the slideway, the spring beingconfined between one end ofthe f recess and a pin 19 on the slide block to move the cutting tool toretracted position. A

sleeve 20 is arranged to move on the lower end of the die head, the latter having a'slot 21 toreceivethe end of: a screw bolt 22 which relative to the die head. The rear end of each 1 e v cutting toolhas acamprojection23 which is i Y uneas frame. The other end of the rod 6'1 is connected to an arm 66 on the sleeve 6,6-which carries a spring pressed pawl 71 arranged to engage'ratchet teeth 7 2 on .the under side of the index plate. A cam 73 ismounted on the. cam shaft 28 and engagesa roller 74 to operate the cam lever 69 foradvancing the push rod 67 and revolving the index platea part turn. A spring 75'is .attachedatone end to the arm 70 and at its other end to a frame for holding the push rod in engagement with the cam lever and for retracting the sleeve 66 so that the spring pressed pawl will engage another tooth on the index plate.v The spring pawl rides over the teeth on the index plate in the retracting movements of the rod and sleeve. A spring'presseddetent 76 is pivoted atg77 on the frame'and is arranged to engage notches/Z8 in the edge of the index plate to stop the plate at the end of each intermittent movement, and this'detent is elon gated to engage the, index plate throughout the vertical movement of said plate with the shaft and the work table. Acollar 79 ,is

I clamped on a boss 80 on the frame, and this collar carries a pin-81zwhich isarranged to enter the holes 82 in the index plate for-lock ing the index plate in fixed position during the operation of the cutting dies. This locking device is alwaysin fixed position to engage an opening in the index plate where the latter'is carried up by the shaftas the work table carries the Work into position for the cutting dies. The work table is provided with supports 83 having squared projections 84 to engage the sockets 47 in the blanks 48.

My invention provides an automatic ma chine I. of comparatively simple construction a for making metal plugs-for barrels The i the, head, springsjnormally urging the dies radially outwardly, means for rotating the a. die head, naxi ll o able camsleie.

the invention as'equipped for making metal plugs-for barrels'yand these plugs maybe made 1n varlous shapes and s1zes,jand other slm lar devlces may bemadein the machine when equippedwith suitable dies and other timing part-sf Changes inthe form, construetion and arrangement of parts, may bemade without departlng from tllEl lIlYQIltlOIl and I reserve the right to make all such changes as fairly fall within the scope of the following claims I V v 4' Iclaimz p a 1. .In; an automatic machine of :the class described, a frame, a die head supportedby said frame, radially disposeddies carried, by

I die head and sleeve.

rounding. said dies and engaging the ends thereof for moving the dies inwardly to the work, means for moving said cam sleeve ax1ally,sa1d sleeve and d es havlng cam surfaces. thereon operablewhen said die head and sleeve are rotated relatively to adjust the dies radially, andmeans forpreventing relative rotation between the die head and the sleeve.

die head, an axially movable cam sleeve surroundingsaid dies and engaging the ends thereof for movingnthe dies inwardly to the work, means for moving said cam sleeve axially, said sleeve and dies having cam 'sur faces operable when the die head and sleeve are rotated relatively tov adjust the; dies radially, and means for relatively rotating the 3. In an automatic-machine of. the

described, a frame, a die head supported by saidframe,a plurality. of radially movable dies carriedby the head, a cam sleeve mov able axially by said rotating means to engage all of said diesfor moving the dies radially to the work, and springmeans arranged in the head and engaging each die for moving the dies outwardly away from the work upon disengagement of said sleeve from the dies.

' 4. In an automatic machine of the; class I described,- aframe,- a die head supported by said frame,'ia plurality of radially movable dies carried by thehead and having oanr surfaces at their'outer ends, means for IO tat-ing the die head, an axially slidable" sleeve surrounding the die head andengaging the cam surfaces of the diesforSimultaneously moving all of the-dies tothe work, said sleeve and dies having camsurfaces operable when the die headand sleeve are'rotated relatively to adjust the dies radially, and .means for relatively 'rotating the die head and the sleeve. '5. In an automatic machine of-the class de scribed, a fra1ne,"a 'die. head carried by said frame, means for rotating the die head, a plu rality of radially disposed dies carried by thehead and having cams attheir outeriendsya reciprocable sleeve surrounding tl fiiv die head and engaging said'cams for moving the die to the work and means actuated by therelative rotation of-the diehead and sleeve for radially adjusting the dies. I 61 In anfiautomatic mach described, a frame, 7 a die head supported by;

ine of the said'frame, means. for rotating the die head,

a 'plurality of diescarried by;-the..headi-and disposed radially thereto, each die having a cam at its outer end, a sleeve on the head sui roundingthe dies and-slidable to engage said cams for moving all" the dies tofthe' work siniu w e ly, mans-awed b wer tating means for sliding said sleeve intermittently into and out of engagement with said cams, spring means for retracting the dies from the work when thesleeve is disengaged from the-cams, said sleeve and dies havlng cam surfaces operable when the the head and sleeve are rotated relatively to ad just the dies radially, means for relatively rotating the die head and the sleeve, a revolving'work table carrying the work,and means operated by said rotating means torevolve the Work table intermittently, and means for V shifting the work table towards and from the dies.

'7, In an automatic machine of the class described,-a frame, a die head supported by said frame, means for rotating the die. head,

said'head having radial slideways therein, a

V plurality of dies,a block on each die slidable in-said slideways, a .cam on the outer end of each die, a sleeve surroundmg said dies and slidable on the head to engage said cams for moving the diesto the work. means operated by said rotating means for sliding said sleeve described, the combination of a frame, a

spindle shaft, means for rotating said shaft,

into and out of engagement with said cams, a spring connected to each block for retracting the dies when the sleeve is disengaged from the cams, said sleeve and dies having cam surfaces operable when the die head and sleeve are" rotated relatively to adjust the dies radially, and means for'relatively rotatingthediehead and sleeve. 7

'8.-In an automatidmachine of the class a die head carried by said'shaft, a die carried by said head, a work table, 'a cam shaft mounted on thefframe, means: for rotating said cam shaft by said spindle shaft, means operated by said cam shaft for revolving said Work table intermittently, means operatedby said spindleshaft for moving the Work spindle shaft mounted in the: frame, a die .headcarried by'said shaft, a die carried by the head,qineans for rotating the spindle shaft, a Work table, means operated by said spindle. shaft, for revolving the work table intermittently,'means operatedby the said N I u,

spindle shaft for'moving the work table toward and from the die head'to carry thQWOi'k to and fromthe die, meansfor stopping the table during intermittent rotation thereof,

and means for positively locking the work table in fixed position duringthe operation of the die on'thework, V V

-10;-In; anautom'atic machine ofthe class described, the combination ofa frame, a spindle shaft mounted inthe frame, a;die head carried by said shaft, a die radially mounted in head means for rotating the spindle shaft, a work table, an index'platerigid with the work table, ratchet means for revolubly moving said index plate and work table,

means operated by said spindle shaft to move the worktable to and from the diehead to carry the work to and fromtheidie, means engaging the index plate for stopping said plate and the work table intermittently and 7 means passing through the index plate for positively locking the index plate and the work'table in fixed position during the operation of the die on the Work. i V V 11. In an automatic machine of'the class described, the-combination of a frame, a spindle shaftmounted ingthe' frame, a die head carried by said shaft, a plurality of dies carried by the head, means for rotating the spindle shaft, a work table, an index plate rigid with thework table, means operated by said spindle shaft for revolubly moving said index plate and work table intermittently, said worktable having recesses in its periphery, aSpIf ng-pressed detent to engage said recesses, means for moving the diesto the work, means operated by said spindle shaft" to move the work table to and from the die head to carry the work toand from the dies, and means for locking the index plate and the worktable in fixed position during the operation of the dies on the work. 7

12. In an automaticmachiiie of the class described, the combination of a frame, a spindle shaft mounted in the frame, a die head. carried by said" shaft, a plurality of tools radially mounted in the head, means for simultaneously moving the dies to the work, :means' for: rotating, the spindle shaft, a work table, an index plate rigid with the work table, saidindex plate and work table being slidable relative; to the die head and said index plate having recesses-in its periph-V ery,ratchet means for revolving the index plate and work table intermittently, an elon- V gated detent for engaging the recessesin the 7 index plate, means operatedby said spindle shaft for operating saideratchet means, means operated by said spindle 'shaftto move the work table to and from the die head to carry the workto and from the tools, and locking means extending'through the index plate for holding said plate and thegwork table in fixed position during the operation of the tools on the worln 13. In an automatic machine of class described, the combination of a frame, a spindle shaft mounted in" the;frame,..a die head carried' by said shaft, a plurality 50f tools fslidable in the head, meansforrotating V V the spindle shaft, slidable means operated the rotatingmea'nsfor simultaneously moving the diesfto the work, a work table, an index plate rigid with the work table, means operated by said spindle shaft forrevolnbly moving said index plate and Work table inter-1 mittently, means operatediby said spindle shaft to move the Work table to and from the die head to carry the Work to and from the tools, means engaging the periphery of said plate for holding the plate intermittently, said index plate having a plurality of openings therein, and a pin-mounted rigidly on the frame to engageone of the openings in the. index plate While the Work table supports the Work in operative position relative to the tools. 1 v GUSTAVE C. NELSON. 

